HP adapter with part number(P/N) 463957-001 is quite superior charger, which could be compatible with many other HP laptop with the same specification.
Specification of HP 463957-001 charger. It made by HP manufacturer, a genius charger. Input is AC 100V-240V, that means it could be used at every corner of the world, so you do not need to worry if you need to take your laptop on a trip for the charger could be work. Output is DC19V 4.74A/ DC 18.5V 3.5A, there are two different current, that because of the power, the max power is 90 Watt, but you could use it under 90 Watt power condition, usually 65 Watt is used.That is a three-prong laptop ac adapter, which is quite fashion and three-prong wall outlet is used widely and will be more safe.
DC connector is barrel and the size is internal Diameter: 5.0mm ,external Diameter: 7.4mm with central smart-pin inside.
To say this charger is superior since it could be compatible with so many laptop model: